2004-2005 Bosch 0445120027 New Common Rail Injector – Fits GM 6.6L Duramax LLY

Description

BOSCH 0445120027 NEW COMMON RAIL INJECTOR – GM® 6.6L DURAMAX LLY

The Bosch 0445120027 common rail injector is designed for 2004-2005 GM® 6.6L Duramax LLY diesel engines requiring OE-level fuel delivery performance and reliability.

Bosch® was the original equipment supplier for the LLY Duramax injector platform, and this injector is manufactured to updated production standards and engineering tolerances to support long-term diesel engine performance.

Duramax common rail injectors operate under extremely high fuel pressure and precise timing requirements. A worn or failing injector can lead to rough idle, excessive smoke, injector balance rate issues, hard starting, fuel knock, poor fuel economy, or loss of power.

Each injector is end-of-line tested using OE-equivalent equipment and procedures to verify injection timing, fuel delivery, and leakage performance before shipment.

Features & Benefits

• New Bosch® common rail injector
• Designed for GM® 6.6L Duramax LLY applications
• Manufactured using OE tooling and processes
• End-of-line tested to OE-equivalent specifications
• Helps restore proper fuel delivery and injector balance performance
• Supports improved drivability and engine operation
• Manufactured with updated engineering revisions
• Designed for demanding diesel environments

Common Symptoms of a Failed Injector

• Rough idle
• Hard starting
• Excessive smoke
• Fuel knock
• Injector balance rate issues
• Poor fuel economy
• Engine misfires
• Loss of power

Included in the Box

• 1x New Fuel Injector
• 1x Chamber Nozzle Tip Gasket

Specifications

• Brand: Bosch
• Part Number: 0445120027
• Condition: New
• Product Type: Common Rail Fuel Injector
• Gross Weight: 1.7857 LB
• Country of Origin: Germany
• UPC: 165143558928
• Reference Number: BOS11824

Compatible Applications

Fits select:

• 2004-2005 Chevrolet® Silverado 2500 (6.6L Duramax LLY)
• 2004-2005 Chevrolet® Silverado 3500 (6.6L Duramax LLY)
• 2004-2005 GMC® Sierra 2500 (6.6L Duramax LLY)
• 2004-2005 GMC® Sierra 3500 (6.6L Duramax LLY)

⚠ Please verify fitment using your vehicle information, VIN, and part number before purchase.

Cross Reference Numbers

For identification and compatibility reference only:

0 445 120 027, 0 986 435 504, 0 986 435 504RX, 0445120027, 0-445-120-027, 0986435504, 0-986-435-504, 0986435504RX, 0-986-435-504RX, 2411300005, 241-130-0005, 2900714000, 2-90071-400-0, 2J102, 2J-102, 732501, 732-501, 7838GN, 7838-GN, 8973036572, 8-97303-657-2, 90071400, 97303657, 97780144, AP55504, DA2251041, DE665, DT660002R, DT97303657R, EX631046, FJ489, FJ-489, R986435504

Warranty

Warranty Coverage:

• 12 Month Unlimited Mileage Warranty

Warranty applies against manufacturing defects in material and workmanship.

California Diesel Note

California Diesel supplies diesel fuel system and engine-related components for light-duty, medium-duty, and heavy-duty diesel applications. We focus on practical support, dependable inventory, and diesel-focused service for repair shops, fleets, and diesel professionals.

Legal Compliance

⚠ Legal Compliance: This product is not endorsed by or affiliated with Chevrolet®, GMC®, Duramax®, General Motors®, or any other brand mentioned. Trademarks are used only for compatibility and identification purposes.

⚠ California Proposition 65 Warning: Cancer and Reproductive Harm — www.P65Warnings.ca.gov